Performance Of Ferrous Solution Produced By Industrial Steel Slag For Treating Water From Sungai Chalil, Gua Musang Kelantan

Water have been a fundamental use of every living being throughout the world. Therefore, it is importance to ensure the safety consumption and content that exist within its natural region.
Wastewater treatment using iron salts has been long been used for removing phosphorous, total organic carbon and nitrogen. The objective of this research is to prepare the ferrous solution using the mixture of milled steel slag and acid sulfuric at different pH and to evaluate the effect of mixing speed on the treated water and filtered residue in terms of trace elements, morphology, and absorbance. Ferrous solution was combined with steel slag and sulphuric acid at pH 6, 8 and 11 in this study. Steel slag was first prepared using high energy ball milling at 40 h. and are mixed with the ferrous solution with the collected water at different pH and stirring speed. Then, the characterization such as phase identification, chemical composition, functional group and morphology were determined using according to pH and mixing speed using Inductively Coupled Plasma (ICP), Scanning Electron Microscope (SEM), Ultraviolet Visible Spectrometry (UV-VIS) and Optical Microscope (OM). Based on the result obtain in this research, increasing the stirring speed for the effect of mixing speed on the treated water and filtered gradually cause the trace element to flock, causing the particle to coalescence.
Moreover, the use of steel slag as source of iron able to induce effective coagulation-flocculation process for wastewater treatment.